[ovirt-users] ovirt 3.6.6 and gluster 3.7.13

Krutika Dhananjay kdhananj at redhat.com
Mon Jul 25 06:01:16 UTC 2016 

Hi,

Thanks for the logs. So I have identified one issue from the logs for which
the fix is this: http://review.gluster.org/#/c/14669/. Because of a bug in
the code, ENOENT was getting converted to EPERM and being propagated up the
stack causing the reads to bail out early with 'Operation not permitted'
errors.
I still need to find out two things:
i) why there was a readv() sent on a non-existent (ENOENT) file (this is
important since some of the other users have not faced or reported this
issue on gluster-users with 3.7.13)
ii) need to see if there's a way to work around this issue.

Do you mind sharing the steps needed to be executed to run into this issue?
This is so that we can apply our patches, test and ensure they fix the
problem.

-Krutika

On Fri, Jul 22, 2016 at 7:17 PM, David Gossage <dgossage at carouselchecks.com>
wrote:

> Trimmed out the logs to just about when I was shutting down ovirt servers
> for updates which was 14:30 UTC 2016-07-09
>
> Pre-update settings were
>
> Volume Name: GLUSTER1
> Type: Replicate
> Volume ID: 167b8e57-28c3-447a-95cc-8410cbdf3f7f
> Status: Started
> Number of Bricks: 1 x 3 = 3
> Transport-type: tcp
> Bricks:
> Brick1: ccgl1.gl.local:/gluster1/BRICK1/1
> Brick2: ccgl2.gl.local:/gluster1/BRICK1/1
> Brick3: ccgl3.gl.local:/gluster1/BRICK1/1
> Options Reconfigured:
> performance.readdir-ahead: on
> storage.owner-uid: 36
> storage.owner-gid: 36
> performance.quick-read: off
> performance.read-ahead: off
> performance.io-cache: off
> performance.stat-prefetch: off
> cluster.eager-lock: enable
> network.remote-dio: enable
> cluster.quorum-type: auto
> cluster.server-quorum-type: server
> server.allow-insecure: on
> cluster.self-heal-window-size: 1024
> cluster.background-self-heal-count: 16
> performance.strict-write-ordering: off
> nfs.disable: on
> nfs.addr-namelookup: off
> nfs.enable-ino32: off
>
> At the time of updates ccgl3 was offline from bad nic on server but had
> been so for about a week with no issues in volume
>
> Shortly after update I added these settings to enable sharding but did not
> as of yet have any VM images sharded.
> features.shard-block-size: 64MB
> features.shard: on
>
>
>
>
> *David Gossage*
> *Carousel Checks Inc. | System Administrator*
> *Office* 708.613.2284
>
> On Fri, Jul 22, 2016 at 5:00 AM, Krutika Dhananjay <kdhananj at redhat.com>
> wrote:
>
>> Hi David,
>>
>> Could you also share the brick logs from the affected volume? They're
>> located at
>> /var/log/glusterfs/bricks/<hyphenated-path-to-the-brick-directory>.log.
>>
>> Also, could you share the volume configuration (output of `gluster volume
>> info <VOL>`) for the affected volume(s) AND at the time you actually saw
>> this issue?
>>
>> -Krutika
>>
>>
>>
>>
>> On Thu, Jul 21, 2016 at 11:23 PM, David Gossage <
>> dgossage at carouselchecks.com> wrote:
>>
>>> On Thu, Jul 21, 2016 at 11:47 AM, Scott <romracer at gmail.com> wrote:
>>>
>>>> Hi David,
>>>>
>>>> My backend storage is ZFS.
>>>>
>>>> I thought about moving from FUSE to NFS mounts for my Gluster volumes
>>>> to help test.  But since I use hosted engine this would be a real pain.
>>>> Its difficult to modify the storage domain type/path in the
>>>> hosted-engine.conf.  And I don't want to go through the process of
>>>> re-deploying hosted engine.
>>>>
>>>>
>>> I found this
>>>
>>> https://bugzilla.redhat.com/show_bug.cgi?id=1347553
>>>
>>> Not sure if related.
>>>
>>> But I also have zfs backend, another user in gluster mailing list had
>>> issues and used zfs backend although she used proxmox and got it working by
>>> changing disk to writeback cache I think it was.
>>>
>>> I also use hosted engine, but I run my gluster volume for HE actually on
>>> a LVM separate from zfs on xfs and if i recall it did not have the issues
>>> my gluster on zfs did.  I'm wondering now if the issue was zfs settings.
>>>
>>> Hopefully should have a test machone up soon I can play around with more.
>>>
>>> Scott
>>>>
>>>> On Thu, Jul 21, 2016 at 11:36 AM David Gossage <
>>>> dgossage at carouselchecks.com> wrote:
>>>>
>>>>> What back end storage do you run gluster on?  xfs/zfs/ext4 etc?
>>>>>
>>>>> *David Gossage*
>>>>> *Carousel Checks Inc. | System Administrator*
>>>>> *Office* 708.613.2284
>>>>>
>>>>> On Thu, Jul 21, 2016 at 8:18 AM, Scott <romracer at gmail.com> wrote:
>>>>>
>>>>>> I get similar problems with oVirt 4.0.1 and hosted engine.  After
>>>>>> upgrading all my hosts to Gluster 3.7.13 (client and server), I get the
>>>>>> following:
>>>>>>
>>>>>> $ sudo hosted-engine --set-maintenance --mode=none
>>>>>> Traceback (most recent call last):
>>>>>>   File "/usr/lib64/python2.7/runpy.py", line 162, in
>>>>>> _run_module_as_main
>>>>>>     "__main__", fname, loader, pkg_name)
>>>>>>   File "/usr/lib64/python2.7/runpy.py", line 72, in _run_code
>>>>>>     exec code in run_globals
>>>>>>   File
>>>>>> "/usr/lib/python2.7/site-packages/ovirt_hosted_engine_setup/set_maintenance.py",
>>>>>> line 73, in <module>
>>>>>>     if not maintenance.set_mode(sys.argv[1]):
>>>>>>   File
>>>>>> "/usr/lib/python2.7/site-packages/ovirt_hosted_engine_setup/set_maintenance.py",
>>>>>> line 61, in set_mode
>>>>>>     value=m_global,
>>>>>>   File
>>>>>> "/usr/lib/python2.7/site-packages/ovirt_hosted_engine_ha/client/client.py",
>>>>>> line 259, in set_maintenance_mode
>>>>>>     str(value))
>>>>>>   File
>>>>>> "/usr/lib/python2.7/site-packages/ovirt_hosted_engine_ha/client/client.py",
>>>>>> line 204, in set_global_md_flag
>>>>>>     all_stats = broker.get_stats_from_storage(service)
>>>>>>   File
>>>>>> "/usr/lib/python2.7/site-packages/ovirt_hosted_engine_ha/lib/brokerlink.py",
>>>>>> line 232, in get_stats_from_storage
>>>>>>     result = self._checked_communicate(request)
>>>>>>   File
>>>>>> "/usr/lib/python2.7/site-packages/ovirt_hosted_engine_ha/lib/brokerlink.py",
>>>>>> line 260, in _checked_communicate
>>>>>>     .format(message or response))
>>>>>> ovirt_hosted_engine_ha.lib.exceptions.RequestError: Request failed:
>>>>>> failed to read metadata: [Errno 1] Operation not permitted
>>>>>>
>>>>>> If I only upgrade one host, then things will continue to work but my
>>>>>> nodes are constantly healing shards.  My logs are also flooded with:
>>>>>>
>>>>>> [2016-07-21 13:15:14.137734] W [fuse-bridge.c:2227:fuse_readv_cbk]
>>>>>> 0-glusterfs-fuse: 274714: READ => -1 gfid=4
>>>>>> 41f2789-f6b1-4918-a280-1b9905a11429 fd=0x7f19bc0041d0 (Operation not
>>>>>> permitted)
>>>>>> The message "W [MSGID: 114031]
>>>>>> [client-rpc-fops.c:3050:client3_3_readv_cbk] 0-data-client-0: remote
>>>>>> operation failed [Operation not permitted]" repeated 6 times between
>>>>>> [2016-07-21 13:13:24.134985] and [2016-07-21 13:15:04.132226]
>>>>>> The message "W [MSGID: 114031]
>>>>>> [client-rpc-fops.c:3050:client3_3_readv_cbk] 0-data-client-1: remote
>>>>>> operation failed [Operation not permitted]" repeated 8 times between
>>>>>> [2016-07-21 13:13:34.133116] and [2016-07-21 13:15:14.137178]
>>>>>> The message "W [MSGID: 114031]
>>>>>> [client-rpc-fops.c:3050:client3_3_readv_cbk] 0-data-client-2: remote
>>>>>> operation failed [Operation not permitted]" repeated 7 times between
>>>>>> [2016-07-21 13:13:24.135071] and [2016-07-21 13:15:14.137666]
>>>>>> [2016-07-21 13:15:24.134647] W [MSGID: 114031]
>>>>>> [client-rpc-fops.c:3050:client3_3_readv_cbk] 0-data-client-0: remote
>>>>>> operation failed [Operation not permitted]
>>>>>> [2016-07-21 13:15:24.134764] W [MSGID: 114031]
>>>>>> [client-rpc-fops.c:3050:client3_3_readv_cbk] 0-data-client-2: remote
>>>>>> operation failed [Operation not permitted]
>>>>>> [2016-07-21 13:15:24.134793] W [fuse-bridge.c:2227:fuse_readv_cbk]
>>>>>> 0-glusterfs-fuse: 274741: READ => -1
>>>>>> gfid=441f2789-f6b1-4918-a280-1b9905a11429 fd=0x7f19bc0038f4 (Operation not
>>>>>> permitted)
>>>>>> [2016-07-21 13:15:34.135413] W [fuse-bridge.c:2227:fuse_readv_cbk]
>>>>>> 0-glusterfs-fuse: 274756: READ => -1
>>>>>> gfid=441f2789-f6b1-4918-a280-1b9905a11429 fd=0x7f19bc0041d0 (Operation not
>>>>>> permitted)
>>>>>> [2016-07-21 13:15:44.141062] W [fuse-bridge.c:2227:fuse_readv_cbk]
>>>>>> 0-glusterfs-fuse: 274818: READ => -1
>>>>>> gfid=441f2789-f6b1-4918-a280-1b9905a11429 fd=0x7f19bc0038f4 (Operation not
>>>>>> permitted)
>>>>>> [2016-07-21 13:15:54.133582] W [MSGID: 114031]
>>>>>> [client-rpc-fops.c:3050:client3_3_readv_cbk] 0-data-client-1: remote
>>>>>> operation failed [Operation not permitted]
>>>>>> [2016-07-21 13:15:54.133629] W [fuse-bridge.c:2227:fuse_readv_cbk]
>>>>>> 0-glusterfs-fuse: 274853: READ => -1
>>>>>> gfid=441f2789-f6b1-4918-a280-1b9905a11429 fd=0x7f19bc0036d8 (Operation not
>>>>>> permitted)
>>>>>> [2016-07-21 13:16:04.133666] W [fuse-bridge.c:2227:fuse_readv_cbk]
>>>>>> 0-glusterfs-fuse: 274879: READ => -1
>>>>>> gfid=441f2789-f6b1-4918-a280-1b9905a11429 fd=0x7f19bc0041d0 (Operation not
>>>>>> permitted)
>>>>>> [2016-07-21 13:16:14.134954] W [fuse-bridge.c:2227:fuse_readv_cbk]
>>>>>> 0-glusterfs-fuse: 274894: READ => -1
>>>>>> gfid=441f2789-f6b1-4918-a280-1b9905a11429 fd=0x7f19bc0036d8 (Operation not
>>>>>> permitted)
>>>>>>
>>>>>> Scott
>>>>>>
>>>>>>
>>>>>> On Thu, Jul 21, 2016 at 6:57 AM Frank Rothenstein <
>>>>>> f.rothenstein at bodden-kliniken.de> wrote:
>>>>>>
>>>>>>> Hey Devid,
>>>>>>>
>>>>>>> I have the very same problem on my test-cluster, despite on running
>>>>>>> ovirt 4.0.
>>>>>>> If you access your volumes via NFS all is fine, problem is FUSE. I
>>>>>>> stayed on 3.7.13, but have no solution yet, now I use NFS.
>>>>>>>
>>>>>>> Frank
>>>>>>>
>>>>>>> Am Donnerstag, den 21.07.2016, 04:28 -0500 schrieb David Gossage:
>>>>>>>
>>>>>>> Anyone running one of recent 3.6.x lines and gluster using 3.7.13?
>>>>>>> I am looking to upgrade gluster from 3.7.11->3.7.13 for some bug fixes, but
>>>>>>> have been told by users on gluster mail list due to some gluster changes
>>>>>>> I'd need to change the disk parameters to use writeback cache.  Something
>>>>>>> to do with aio support being removed.
>>>>>>>
>>>>>>> I believe this could be done with custom parameters?  But I believe
>>>>>>> strage tests are done using dd and would they fail with current settings
>>>>>>> then? Last upgrade to 3.7.13 I had to rollback to 3.7.11 due to stability
>>>>>>> isues where gluster storage would go into down state and always show N/A as
>>>>>>> space available/used.  Even if hosts saw storage still and VM's were
>>>>>>> running on it on all 3 hosts.
>>>>>>>
>>>>>>> Saw a lot of messages like these that went away once gluster
>>>>>>> rollback finished
>>>>>>>
>>>>>>> [2016-07-09 15:27:46.935694] I [fuse-bridge.c:4083:fuse_init]
>>>>>>> 0-glusterfs-fuse: FUSE inited with protocol versions: glusterfs 7.22 kernel
>>>>>>> 7.22
>>>>>>> [2016-07-09 15:27:49.555466] W [MSGID: 114031]
>>>>>>> [client-rpc-fops.c:3050:client3_3_readv_cbk] 0-GLUSTER1-client-1: remote
>>>>>>> operation failed [Operation not permitted]
>>>>>>> [2016-07-09 15:27:49.556574] W [MSGID: 114031]
>>>>>>> [client-rpc-fops.c:3050:client3_3_readv_cbk] 0-GLUSTER1-client-0: remote
>>>>>>> operation failed [Operation not permitted]
>>>>>>> [2016-07-09 15:27:49.556659] W [fuse-bridge.c:2227:fuse_readv_cbk]
>>>>>>> 0-glusterfs-fuse: 80: READ => -1 gfid=deb61291-5176-4b81-8315-3f1cf8e3534d
>>>>>>> fd=0x7f5224002f68 (Operation not permitted)
>>>>>>> [2016-07-09 15:27:59.612477] W [MSGID: 114031]
>>>>>>> [client-rpc-fops.c:3050:client3_3_readv_cbk] 0-GLUSTER1-client-1: remote
>>>>>>> operation failed [Operation not permitted]
>>>>>>> [2016-07-09 15:27:59.613700] W [MSGID: 114031]
>>>>>>> [client-rpc-fops.c:3050:client3_3_readv_cbk] 0-GLUSTER1-client-0: remote
>>>>>>> operation failed [Operation not permitted]
>>>>>>> [2016-07-09 15:27:59.613781] W [fuse-bridge.c:2227:fuse_readv_cbk]
>>>>>>> 0-glusterfs-fuse: 168: READ => -1 gfid=deb61291-5176-4b81-8315-3f1cf8e3534d
>>>>>>> fd=0x7f5224002f68 (Operation not permitted)
>>>>>>>
>>>>>>> *David Gossage*
>>>>>>> *Carousel Checks Inc. | System Administrator*
>>>>>>> *Office* 708.613.2284
>>>>>>>
>>>>>>> _______________________________________________
>>>>>>> Users mailing listUsers at ovirt.orghttp://lists.ovirt.org/mailman/listinfo/users
>>>>>>>
>>>>>>>
>>>>>>>
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